include/uapi/linux/wmi.h

Source file repositories/reference/linux-study-clean/include/uapi/linux/wmi.h

File Facts

System
Linux kernel
Corpus path
include/uapi/linux/wmi.h
Extension
.h
Size
1718 bytes
Lines
71
Domain
Core OS
Bucket
Core Kernel Interface
Inferred role
Core OS: implementation source
Status
source implementation candidate

Why This File Exists

Core operating-system implementation surface: boot, tasks, memory, VFS, syscall-facing interfaces, synchronization, credentials, and isolation.

Dependency Surface

Detected Declarations

Annotated Snippet

struct wmi_ioctl_buffer {
	__u64	length;
	__u8	data[];
};

/* This structure may be modified by the firmware when we enter
 * system management mode through SMM, hence the volatiles
 */
struct calling_interface_buffer {
	__u16 cmd_class;
	__u16 cmd_select;
	volatile __u32 input[4];
	volatile __u32 output[4];
} __packed;

struct dell_wmi_extensions {
	__u32 argattrib;
	__u32 blength;
	__u8 data[];
} __packed;

struct dell_wmi_smbios_buffer {
	__u64 length;
	struct calling_interface_buffer std;
	struct dell_wmi_extensions	ext;
} __packed;

/* Whitelisted smbios class/select commands */
#define CLASS_TOKEN_READ	0
#define CLASS_TOKEN_WRITE	1
#define SELECT_TOKEN_STD	0
#define SELECT_TOKEN_BAT	1
#define SELECT_TOKEN_AC		2
#define CLASS_FLASH_INTERFACE	7
#define SELECT_FLASH_INTERFACE	3
#define CLASS_ADMIN_PROP	10
#define SELECT_ADMIN_PROP	3
#define CLASS_INFO		17
#define SELECT_RFKILL		11
#define SELECT_APP_REGISTRATION	3
#define SELECT_DOCK		22

/* whitelisted tokens */
#define CAPSULE_EN_TOKEN	0x0461
#define CAPSULE_DIS_TOKEN	0x0462
#define WSMT_EN_TOKEN		0x04EC
#define WSMT_DIS_TOKEN		0x04ED

/* Dell SMBIOS calling IOCTL command used by dell-smbios-wmi */
#define DELL_WMI_SMBIOS_CMD	_IOWR(WMI_IOC, 0, struct dell_wmi_smbios_buffer)

#endif

Annotation

Implementation Notes